The theory that the Vagina being predominantly tight due to muscles will go slack and loose on Celebate women as a result of not being put to use during sexual intercourse while promiscuous women will have a tighter vagina due to the muscle having a regular work out and snapping back tight by the next morning
I fucked 2 girls last week that proved Elasticity Theory the tramp of the two was plenty tight but her prudish friend that has held out for the last 2 years was like fuckin a jar of mayo
by All Knowing Asshole February 27, 2017
Get the Elasticity Theory mug.
When your with someone, things can get too close. So TA-DA the elastic band theory: if you let someone go they will come pinging back like an elastic band.

YAY :)
Scenario 1:

Jane: I love you baby your my world
Tom: Woah your suffocating me here, I need some time alone.
Jane: Nooo I love you so much don't go!!!

Jane: I love you baby your my world
Tom: Woah your suffocating me here, I need some time alone.
Jane: Ok sweety, see you whenever then.
*Later*
Tom: I LOVE YOU JANE :)
Jane: Mwahahaha the Elastic band theory never fails
by babeyyyyyx October 12, 2009
Get the Elastic band theory mug.